Cotter-pin-extracting pliers



July 31, 1923. 1,463,645 v J. O. WRIGHT CUTTER PIN EXTRACTING PLIEIRSFiled Aug. 23. 1921 Patented July 31, 1923.

.U'NITED, snares 3,645- P ENT OFFICE.

JAMES OLBERT WRIGHT, or ATLANTIC any, N W, JERSEY,

corrnn-rm-nx'rnncrme .PLIERS.

Application filed August 23, 1921. SeriaI No. 494,678.

To all whom it may concern: 7

Be it known that I, JAMES OLBERT WRIGHT, a citizen ofthe United States,residing at Atlantic City, in the county of Atlantic and State of NewJersey, have invented anew and useful Improvement inCotter-Pin-Extracting Pliers, of Which the following description, withthe accompanying drawing, is a specification.

This invention relates to improvements-on cotter pin extracting pliershaving specially shaped jaws for extracting cotter pins more especiallyas applied to automobile and kindred machinery.

The objects of my invention being first, to provide more suitably shapedgripping jaws; second, to provide a greater amount of leverage foroperating the jaws; third, to provide means for straightening the pinsand ex tracting fragments of pins.

With these and other objects in view as will more fully hereinafterappear, the invention consists of certain novel features-of constructionand arrangement of parts hereinafter fully described, shown in theaccompanying drawing, and particularly pointed out in the appendedclaims.

In the accompanying drawing, Figure 1 is a top view of my device as itwould appear so lying on a horizontal plane withits specially formedgripping jaws bending upward on an angle with the plane of the pivotalmovement of the jaws. Figure 2 is a side elevation of Figure 1, showingbend in the grip- 5 ping jaws. Figure 3 is a detail view of one of thejaws as it would appear from the intersecting line AB of Figure 1.

Similar numerals of reference are used to indicate corresponding partsthroughout the several figures of the drawing.

In the drawing 1 and 1 are two co-acting handles or levers pivotedparallel with each other in such a manner at 5", that the other endsrecede from each other when the handles are pressed together, said endsbeing pivotally connected to the members or jaws 2 and 2 pivoted on theplates 6 and 6. The adjacent faces of the outer or gripping ends of saidjaws lie against each other when the handles of 1 and 1 are pressedtogether. I

do not limit myself to the exact location of the pivots as shown, as bythe well known principle of levers; by shifting the fulcrum, the powermay be increased or diminished without departing from the scope of mystrong enough to remove the large sized pins when'they are stuck fast, Iprovide a special shape to the jaws 2 and 2. In the inside ad acentfaces at the gripping ends are cut outonrecessed portions 4 and 4,creating I the pointed ends 3 and 3 which may enter the eye of thesmaller sized pins from both sides. The recessed portions 4 and 4 aremade small enoughto embrace the rounded sides of the eye of the largersized pins, taking the strain from the points 3 and 3.

The jaws 2 and 2 as shown in the drawing, are curved at an angle totheir pivotal movement, to provide a rolling surface 2" upon which theymay be rocked as a fulcrum for pulling out the pins after they have beengripped. The curvature of the jaws extends right up to the points sothat a fulcrum may be had at any point on the, curve 2". The fulcrum isclose to the points at starting and may be shifted as the pin is beingpulled out.

As it is necessary in removing a cotter pin, to straighten the pointsbefore pulling the eye, the points 3 and 3 are flattened slightly toadapt them to be used for straightening the points of the smaller pins;while the flat surfaces 9 and 9 may be used for a similar purpose forthe larger pins. These fiat surfaces. 9 and 9 which may be knurled, arealso adapted for extracting broken fragments of pins or where the eyedoes not project beyond itsseat sufliciently to use the gripping points.The surfaces 9 and 9 together with the points 3 and 3, and the re cessedportions 4 and 4, are all situated within the curved portion of the jaws2 and 2. and may be rocked on the curved surface 2" of the said jaws asbefore stated.

In cases where insufiicient working space prevents the use of the devicein the manner described, I have so formed the two outside faces 2' and 2of the jaws 2 and 2 so that the device may be rocked sideways, using Ione of the points 3 as a hook.

10 of the handles 1 and 1 keep the handles normally spread apart; and byreason of their connection with the jaws 2 and 2 perterms s m a t ns nfo he ja s The spring 11 mounted on the lugs 10 and Having thus fullydescribed my invention, what I desire-to secure by Letters Patent is:

1. In a device for extracting cotter pins, handles pivoted parallel witheach other, coacting jaws pivotally connected intermediate their endsand to the handles at their ad jacent ends, said jaws being curvedsimilarly for a portion of their length at an angle to their pivotalmovement, said jaws having on their confronting sides, pointedextremities, recessed portions adjacent the points for gripping roundedsurfaces, and flat gripin surfaces ad'acent the recessed ortions.

2. In a device for extracting cotter pins, handles pivoted parallel witheach other, 00- acting jaws pivotally connected intermediate their endsand to the handles at their adjacent ends, said jaws being curvedsimilarly fora portion of their length at an angle to their pivotalmovement, said jaws having on their confronting sides, pointedextremities flattened slightly at the points,

acting jaws pivotally connected intermediate their ends and to thehandles at their adjacent ends, said jaws being curved similarly foraportion of their length at an angle to their pivotal movement, said jawshaving specially formed confronting faces straightening and extractingcotter pins, and

means for respectively keeping said jaws and said handles normally,spread apart.

Signed at Atlantic City, in the county of Atlantic and State of NewJersey.

JAMES OLBERT WRIGHT. In the presence of-- WVALTER Wnrss, ROBERT E.MQARDLE.

for

